LFA returns tonight with a pair of titles at the top of the card in South Dakota. In the main event, the vacant men’s flyweight belt is up for grabs when Sid Bice (7-1) takes on Maikel Perez (5-1). In the co-feature, the vacant women’s flyweight title is on the line when Sabina Mazo (4-0) meets Shannon Sinn (3-5). LFA 37 takes place at Sanford Pentagon in Sioux Falls, S.D